Binding post



F. C. WAPPLER BINDIUG POST Filed. March 16, 1927 INVENTOR Wyn 2 ATTOR%Y L '1 One object of the ty Patented 25, 1928 FREDERICK CHARLES WAIPLEB, 058 NEW YORK, N. Y. 4

nn vnme rosr.

' n ncanmmea 1mm 1a, 1921. Serial No. graces.

My present invention relates generally to binding posts, having particular reference to wherein theend of a wire'or the like is designed to be inserted-longitudinally into a suitable-opening. l the invention is to provide A a binding post of such a structural nature that the constituent arts thereof will be few in number, extreme y simple 1n-form, and

I a? ted to. be assembled purely by virtue oi'ctional en agement.

Although I have illustrated and shall hereinafter describe a binding post wherein such frictional engagement is-the only means for achieving the proper assembly of the constituent partsg'nevertheless it will be understood that. as to certain phases of myinvention, the sole employment of friction.

is not essential.

at oneiend to a suitable support and adapted to receive through the ot er end a w re or prong of ordinary construction. My invention also contemplates. the arrangement within the tube of a set of independent complementary clamps arranged in a-receptive' v manner with res eat to the 'inserted wire l ":l 'jcllamp with a resilient contact portion and A and adapted to rictionally and resiliently clamp and engage said wire when it 1s mserte ()ne feature of my invention lies in proriding these clamps in" the formof extremely simple stamped elements adapted to' be frictionally engaged andretained within 'the tube. More particularly, I provide each a men-resilient aportion, the latter being so constructed an dill arranged that it may be jammed and-retained frictionally within the tube.

. Anbtherfeature of my invention lies in. providin a'closure'for t e open end of the tube, sai closure being also of the simplest construction and being designed to remain frictionally in osition. 1

For the attainment of [the foregoin objects and such other objects as may ereinaftera pear or be pointed out, I have illustrate one embodiment of m invention in the accompanying drawings in which- Fig. 1 is a yertical cross-section through a binding post embodying the features of my invention and showing a typical wire element in association therewith;

Fig. 2 is a vertical cross-sectiontaken substantially alon the line 2-2 of Fig. i;

mounted. In the form shown, the binding post has a lower portion 11 having a central threaded bore with which a suitable bolt l2, assin upwardly through the base 10, 1s a apte to engage.

Mounted upon the attaching portion 11 is r a tube 13, the interior diameter of which is Myinvention contemplates the provisionof a tubular element adapted to be'fastened' cated generally by the reference numeral.

14 in Fig. 3. I also prefer to shape the out-' side surface of the portion 11 in the form of a hexagon to facilitate the application of r:

awrench or similar instrumentality.

Constructed for frictional accommodation within the tube 13 are a set of clamps indicated' generally in Fig- 3' by the reference numeral 15. In the form shown, I have provided two complementary clamps adapted to be associated in juxtaposed positions to provide opposite jaws for receiving a wire.

. Referring to Fig. 3, it will be noted that each clamp comprises an integral stamping of generally T-shaped construction, the stem 16 of, the T'being suitably curved and con- J structed to provide a resilient contact portion.- The cross-bar 17 of the i is provided at the lower end of the clamp an is men a resilient.

- The resilient considerably smaller than the inside diame- 'portions'lb of a width I ter of the tube '13 so that free adjustment of these resilient contactsmay-be posv,sible.

stem 17 is of a width substantially equal to I v the inside diameter of the tube 13 so-that-' the clamp maybe inserted intothe tube l ro e In the illustrated embodiment, the i 2 weenie through the open end thereof and jammed into its roper position, the clamp being held in this position by the frictional engagement between the portion 17 and the opposite inside walls of the tube.

be proper limiting and predetermination of the position of the clamps within the tube is assured by the shoulder 18 automaticall rovided between the threaded bore an the relatively larger tribe portion 13.

Where two clamps are employed, the crossbars 17 are first designed to be superposed upon one another so as to arrange the clamps in mutually cooperative and operative positions; thereafter the clamps are jammed into the tube. It will be understood, however, that more than two clamps may if de sired be employed. The essential feature of the invention lies in arranging and constructing the non-resilient rear ends in such a manner that when the clamps are mutually associated in operative relationship said ends may be frictionally jammed into and retained in said tube.

To complete the structure of the binding posts, I prefer to provide a washer 19 of such a size as to permit its jamming into the end of the tube after the clamps have been inserted. The washer 19 has a central opening therein arranged to permit the pasfrictionally held in electrical contact theresage therethrough of a wire 20 or the like as shown in Fig. 1. The washer 19 serves to seal all of the open end of the tube except a passage for the wire adapted to be insorted through said end.

It will be obvious that after the clamps .15 are mutually associated and jammed into position, and after the washer 19 has been'similarly jammed into position, a complete operative structure of extremely simple construction is rovided. The insertion of a wire 20 throng the aperture in the washer 19 will force its way into engagement be tween the cooperating tongues 16 and be my invention may be made b those skilledv in the art without departing rom the spirit and scope of the invention as expressed in the appended claims.

It is therefore in-' tended that'these details be interpreted as illustrative and not in a limiting sense.

Having thus described my invention and illustrated-its use, what I claim as new and desire to secure by Letters Patent is- 1. In a binding post, a tube, a set of independent complementary clamping members for application into the tube, and means for frictionally holding said clamping menu here in said tube.

p 2. In a binding post, a tube, a set of independent complementar clamping members for application into t e tube, and means for frictionally holding said clamping memhere in said tube, said means being associated with the rear ends of said members, and the latter comprising resilient tongues 4. In a binding post, a tube, a set of longitudinally arranged complementary clamping members therein, each clampin member comprising a resilient tongue an a non resilient rear end, the latter being of a size and configuration to permit frictional jam= milig and retention thereof into and in said tu 5. In a binding post, a tube, a set of longi-- tudinally arranged complementary clamping members therein, each clampin member comprising a resilient tongue an a nonresilient rear end, the latter being of a width substantially equal to the interior tube diameter whereby the clamping member may be fixed in operative position within the tube by frictionally jamming saidend 'thereinto.

6. In a bindin post, a tube, and a set of complementary c amping members therein; each clamping member comprising a longitudinally arranged resilient tongue narrow enough to, permit transverse. adjustment thereof, and a non-resilient rear end; said rear ends being of such widths with respect to the inside tube diameter that when the clamping members are mutually associated in operative relationship said ends may be extending in a receptive manner toward one frictionally jammed into and retained in said tube.

7. In a binding post, a tube, and a set of complementary clam ing members therein;

each clam ing mem r comprising an integral T-sihaped stamping whose stem is constructed to constitute an adjustable resilient tongue longitudinally positionable within the tube and whose cross-bar is so constructed as to be frictionally retainable between the inner walls of the tube.

8. In a binding post, a tube, and a set of complementary clam ing members therein; each clamping member comprising an integral Tshaped stamping whose stem is conamwm aisiablie resilient anti having 8350 an interior shoumer swhptas domlule Within ed to limit the insertion 01f said cmfissflam'.

A is so con- I-n Witness whereof, I have signed and W be afr'iciaianafiy E'eminable be sealed this specification this 26 day of Febhe inner Walls 0i flaw tube; ufiiid tube ruary, 1927.

0pm (and; wlth respect in which gm may [wan ffewpizwely pmsltmned FREDERZLCK GHARLEF) WAPPLER 

